In an attempt to create a rugged, lightweight shell, Porsche adopted an aluminium and Aramid (Kevlar or Twaron) composite for body use along with a Nomex floor, instead of the steel normally used on their production cars[4]. The vehicle's weight of 3,190 pounds (1,450 kg) helped to achieve its high performance level.Porsche also developed the car's aerodynamics, which were designed to increase stability, as was the automatic ride-height adjustment that became available on the street car (961 race cars had fixed suspensions). Its "zero lift" aerodynamics were a big part of keeping it drivable.[citation needed] The 959 also featured Porsche-Steuer Kupplung (PSK) which was at the time the most advanced all-wheel-drive system in a production car.[citation needed] Capable of dynamically changing the torque distribution between the rear and front wheels in both normal and slip conditions, the PSK system gave the 959 the adaptability it needed both as a race car and as a "super" street car. Under hard acceleration, PSK could send as much as 80% of available power to the rear wheels, helping make the most of the rear-traction bias that occurs at such times[5] It could also vary the power bias depending on road surface and grip changes, helping maintain traction at all times. The magnesium alloy wheels were unique, being hollow inside to form a sealed chamber contiguous with the tire and equipped with a built-in tire pressure monitoring system.[6].The 1983 Frankfurt Motor Show was chosen for the unveiling of the Porsche Group B prototype. Even in the closing hours of October 9, finishing touches were being applied to the car to go on display the next morning. After the first two prototypes, the bodywork was modified to include air vents in the front and rear wheel housings, as well as intake holes behind the doors. The first prototype modified like this was code named "F3", and was destroyed in the first crash test.[citation needed]
The street version of the 959 debuted at the 1985 Frankfurt Motor Show as a 1986 model, but numerous issues delayed production by more than a year. The car was manufactured in two levels of trim, "Sport" and "Komfort", corresponding to the race version and the street version. First customer deliveries of the 959 street variant began in 1987, and the car debuted at a cost of $225,000 USD per unit, still less than half what it cost Porsche to build each one. Production ended in 1988. In total, 337 cars were built, including 37 prototypes and preproduction models.[1] At least one 959 and one 961 remain in the Porsche historic hall in Stuttgart, Germany.
In 1992/1993, Porsche built a strictly limited batch of eight 959s assembled from spare parts from the inventory at the manufacturing site in Zuffenhausen.[1] All eight were 'Komfort'-versions: four in red and four in silver. These cars were much more expensive (747,500 German Marks) than the earlier ones (420,000 German Marks). The later cars also featured a newly developed speed-sensitive damper system. The cars were sold to selected collectors after being driven by works personnel for some time[1] and are today by far the most sought-after 959s.
The 959 was not street legal in the United States prior to 1999 when the "Show and Display" law was passed, although an unknown number were imported via the "grey market" during the late 1980s as show pieces. During the model's development, Porsche refused to provide the United States Department of Transportation with the four 959s they required for crash testing, and the car was never certified by the NHTSA for street use in the U.S. With the passage of "Show and Display" the crash test requirements were removed and importation of the 959 was allowed, assuming the car could meet the emissions standards applicable in 1987. The 959 can be fitted with a catalytic converter and a rechipped computer which allows it to meet those emissions requirements. However, most owners refuse to modify their 959s, and the cars remain collection pieces. Most 959s are in the hands of collectors, but a few do occasionally come to market, with prices in the region of 180,000 - 250,000 EUR (cars produced in 1987/1988). It is impossible to estimate the price of cars from the highly limited batch of 1992/1993.The lessons learned from the 959 project about engine management, aerodynamics, suspension tuning and four wheel drive were what enabled the production life of the 911, once thought to be nearing obsolescence because of the extreme rearward placement of the engine, to be extended to the present day.
Specifications:
price $225 000 USD
engine Twin-Turbo Flat 6
valvetrain DOHC 4 Valves / Cyl
displacement 2849 cc / 173.9 cu in
bore 95.0 mm / 3.74 in
stroke 67.0 mm / 2.64 in
compression 8.3:1
power 335.6 kw / 450.0 bhp @ 6500 rpm
hp per litre 157.95 bhp per litre
bhp/weight
torque 500.3 nm / 369.0 ft lbs @ 5500 rpm
drive wheels Rear Engine / PSK 4WD
body / frame Fibreglass Reainforced Kevlar, Ployurethance Plastic & Aluminum
front brakes Vented Discs w/ABS
f brake size 322 mm / 12.7 in
rear brakes Vented Discs w/ABS
r brake size 308 mm / 12.1 in
front wheels F 43.2 x 20.3 cm / 17.0 x 8.0 in
rear wheels R 43.2 x 22.9 cm / 17.0 x 9.0 in
front tire size 235/45VR-17
rear tire size 255/40VR-17
steering Rack & Pinion
weight 1450 kg / 3197 lbs
wheelbase 2271 mm / 89.4 in
front track 1504 mm / 59.2 in
rear track 1549 mm / 61.0 in
length 4260 mm / 167.7 in
width 1839 mm / 72.4 in
height 1280 mm / 50.4 in
transmission 6-Speed Manual
top speed 313.8 kph / 195.0 mph
0 - 60 mph 4.1 seconds
0 - 100 mph 9.6 seconds
0 - 1/4 mile 12.5 seconds
Porsche 959
Porsche Carrera GT
The Porsche Carrera GT is a mid-engined sports car that was manufactured by Porsche in Leipzig[3], Germany.The development of the Carrera GT can be traced back to its predecessors, the 911 GT1 and LMP1-98 racing cars. Due in part to the FIA and ACO rule changes in 1998, both designs had ended. Porsche at the time had planned on a new Le Mans prototype for 1999. The car was initially intended to use a turbocharged flat-6, but was later redesigned to use a new V10 engine, pushing the project back to planned competition in 2000. The V10 was a unit secretly built by Porsche for the Footwork Formula One team in 1992, but later shelved. The engine was resurrected for the Le Mans prototype and increased in size to 5.5 litres. Unfortunately the project was cancelled after two days of testing for the first car, in mid-1999, mostly due to Porsche's wish to build the Cayenne SUV with involvement from Volkswagen and Audi, thus requiring engineering expertise to be pulled from the motorsports division. It was also speculated that VW-Audi chairman Ferdinand Piëch wanted Audi's new Le Mans Prototype, the Audi R8 not to face competition from Porsche in 2000.Porsche did keep part of the project alive by using the 5.5L V10 from the prototype in a concept car shown at the 2000 Geneva Motor Show, mainly in an attempt to draw attention to their display. Surprising interest in the vehicle and an influx of revenue provided from the Cayenne helped Porsche decide to produce the car, and development started on a road-legal version that would be produced in small numbers at Porsche's new manufacturing facility in Leipzig. Porsche started a production run of Carrera GTs in 2004, shipping the units with an MSRP of $440,000 USD and a dealer invoice price of approximately $414,800 USD. In addition, the delivery charge could be as much as $5,000 USD. The first Carrera GT went on sale in the US on Jan 31, 2004.Originally a production run of 1,500 cars was planned. But Porsche announced in August, 2005 that it would not continue production of the Carrera GT through 2006, citing discontinuation was due to changing airbag regulations in the US. As of May 6, 2006, 1,270 GT's had been manufactured, with 604 being sold in the United States.[4]The Carrera GT is powered by a 5.7 litre V10 engine producing 612 DIN (605 SAE) horsepower (450 kW)[5] whereas the original concept car featured a 5.5 litre version rated at 558 hp (416 kW). Porsche claims it will accelerate from 0 to 100 km/h (62.1 mph) in 3.9 seconds and has a maximum speed of 330 km/h (205 mph)[3], although road tests indicated that in reality the car could accelerate from 0-60 mph in 3.5 seconds[5] and 0-100 mph in 6.8[5] seconds, while 0-125 mph in 9.9[citation needed]. The Carrera GT has a basic five color paint scheme which includes Guards Red, Fayence Yellow, Basalt Black, GT Silver and Seal Grey. Custom colors were also available from the factory. A traditional six-speed manual transmission is the only, in contrast to its rival the Enzo Ferrari which is only offered with a computer actuated paddle shifted manual gearbox. Attached to this gearbox is a beechwood gearknob which pays homage to the wooden gearknob used in the Porsche 917 Le Mans racers. In its second year of production, a limited edition carbonfibre knob was also made available. With the Enzo Ferrari priced initially around $660,000, the Carrera GT base price of US$444,400 makes the dream of owning a piece of Le Mans inspired technology somewhat more attainable.The Carrera GT has large side inlets and air dams that help cool the large V10 framed by the carbon fiber rear hood. Fitted with Porsche's latest brake system, the 15 inch ceramic pad brakes make an impressive appearance underneath the 19 inch front and 20 inch rear wheels. Similar to other Porsche models, such as the 911, the GT includes an automated rear wing spoiler which deploys above 70 mph (110 km/h).The interior is fitted with soft leather. Bose audio system and navigation systems are available as options. In typical Porsche fashion, the ignition is to the left of the steering wheel. This placement dates back to the early days of Le Mans racing when drivers were required to make a running start, hop into their cars, start them and begin the race. The placement of the ignition enabled the driver to start the car with his left hand and put it in gear with his right.Notable technology includes a pure carbon fiber monocoque and subframe, dry sump lubrication and inboard suspension. The carbon fiber monocoque and subframe were produced and assembled by ATR Composites Group of Italy. The Carrera GT radiator is about five times the size of a 911 Turbo's. Unlike some of its rivals, the Carrera GT does not feature dynamic stability control, but it does have traction control. Porsche claims that over 75 technology patents have been filed during the development of the Carrera GT.
Specifications:
Engine:
The powerful 5.7-liter, V10, 605-horsepower engine can take the Carrera GT from 0 to 124 mph (200 kph) in under 10 seconds. The Carrera's top speed is about 205 mph (330 kph). Engine specifications include:
10 cylinders
5.7-liter displacement
605 hp @ 8,000 rpm
435 lb-ft torque @ 5,750 rpm
8,400-rpm maximum engine speed
12.0:1 compression ratio
| Price: | 329,835$ |
| Miles Per Gallon: | --- mpg |
| Curb Weight: | 2750 lbs |
| Layout: | Mid-Engine/RWD |
| Transmission: | 6-Speed Manual |
| Engine | |
| Type: | V10 |
| Displacement: | 5500 cc |
| Horsepower: | 558 bhp @ 7400 rpm |
| Torque: | 442 lb-ft @ --- rpm |
| Redline: | 8200 rpm |
| Performance | |
| 0-60 mph: | 4 sec |
| 0-100 mph: | 9.1 sec |
| Quarter Mile: | 12.4 sec @ 116 mph |
| Skidpad: | .99g |
| Top Speed: | 205 mph |
| Braking, 60-0 mph: | 115 ft |
| Slalom Speed: | 68.5 mph |
Porsche 911 GT3 RS
The Porsche 911 GT3 RS is a high-performance sports car built by Porsche since 2003. It is often confused with the non-roadlegal racecar Porsche 911 GT3-RS of 2001 and later, which was based on the Porsche 911 GT3-R of 2000.The RS (Rennsport, or "Racing Sport") is mainly a carryover of the Porsche 911 GT3, albeit it is lighter thanks to a polycarbonate rear window, carbon fiber hood and rear wing. Porsche ceramic composite brakes, which are also more heat and fade resistant than the iron units fitted as standard, are optional. Mechanically the two cars are identical, and share the same horsepower, and 3.6 litre flat-six engine.The Porsche 997 version of the GT3 RS was released in Europe in October 2006 and in North America in February 2007. It will keep the "GT3 RS" side sticker and the special colored wheels; this time, however, instead of white with either blue or red accents, they will be available in black or arctic silver metallic (both with some orange details like decorative stripe, outside mirrors, rear wing endplates, wheels and roll cage). They will be also available in green or orange (with details in black), or white (without accents, although they can be specified in any color the buyer desires).A new feature that the RS will employ over the regular GT3 will be the adoption of the 44 mm (1.7 in) wider (at the rear) body of the Carrera 4 models. As a result, rear track width increases. A re-designed rear wheel carrier to allow for a greater adjustability and a single-mass, light weight flywheel also differ from the standard 997 GT3.The factory claims a top speed of 193 mph (311 km/h) and a 0-60 time of about 4 seconds using a 415 hp (309 kW) engine.
Specifications:
Engine:Water Cooled, Aluminum, Opposed 6-Cylinder
Position:Rear Longitudinal
Aspiration:Natural
Valvetrain:DOHC, 4 Valves per Cyl w/Varibale Valve Timing, Switching Intake Manifold
Fuel feed:Multipoint Fuel Injection
Displacement:3600 cc / 219.7 cu in
Bore:100 mm / 3.94 in
Stroke:76.4 mm / 3.01 in
Power:284.1 kw / 381 bhp @ 7300 rpm
Hp per litre:105.83 bhp per litre
Bhp/weight:280.15 bhp per weight
Torque:385.05 nm / 284 ft lbs @ 5000 rpm
Redline:8200
Drive wheels:RWD
body / frame:Unit Steel
Front brakes:Cross Drilled & Inner Vented Discs w/6-Piston Calipers, ABS, Servo Assist
Front brake size:350 mm / 13.8 in
Rear brakes:Cross Drilled & Inner Vented Discs w/4-Piston Calipers, ABS, Servo Assist
Rear brake size:330 mm / 13.0 in
Front wheels F:45.7 x 21.6 cm / 18.0 x 8.5 in
Rear wheels R:45.7 x 27.9 cm / 18 x 11.0 in
Front tire size:235/40ZR18
Rear tire size:295/30ZR18
Front suspension:McPherson Struts w/Cylindrical Springs over Internal Dampers,
Rear suspension:Mulit-Link w/Coil Springs over Internal Damper
Weight:1360 kg / 2998 lbs
Wheelbase:2355 mm / 92.7 in
Front track:1485 mm / 58.5 in
Rear track:1495 mm / 58.9 in
Length:4435 mm / 174.6 in
Width:1770 mm / 69.7 in
Height:1275 mm / 50.2 in
Transmission:6-Speed Manual
Gear ratios:3.82:1, 2.15:1, 1.56:1, 1.21:1, 1.00:1, 0.85:1
Final drive:3.44:1
Top speed:306 kph / 190.1 mph
0 - 60 mph:4.4 seconds
Production:306
Porsche 911 GT1
Porsche committed themselves to a full blown re-thinking of the vehicle for the 1998 race,as the FIA and ACO abandoned the rule that GT1 cars must be based on a production vehicle।Designed to match the Toyota GT-One and Mercedes CLK-GTR, the 911 GT1 '98 featured radical changes to the bodywork and a new sequential gearbox. In 1998, in spite of improvements to the car, the privately entered Porsche's proved to be no match for the works CLKs which also were improved. This was also due to the air-restrictor rules being regarded as unfavourable to the turbo engine. The Michelin tires of the factory team and especially the Pirelli of Zakspeed were considered inferior to the Bridgestone of Mercedes, which also would dominate in F1 for many years.At Le Mans, it was a different story. The new BMW V12 LM retired with wheel bearing trouble, and the Mercedes CLK-LM vehicles had oil pump troubles in the new V8 engines that replaced the former V12. The Toyota GT-One was very fast but also suffered gearbox reliability problems.The revised 1998 model,despite being slower than the Toyota or the Mercedes, fulfilled Porsche's slim hopes, taking both first and second place overall thanks to reliability, giving Porsche its record-breaking 16th overall win at Le Mans, more than any other manufacturer in history.At Petit Le Mans race in Road Atlanta, the 911 GT1/98 of Yannick Dalmas made a spectacular backward flip and landed rear first before hitting the side barriers, as did the BMW V12 LMR at the same race in 2000, and most infamously the Mercedes-Benz CLR at Le Mans in 1999.The GT1 1998 was set up with higher downforce in the race than the previous two years, which reduced its race maximum speed to 310 km/h (193 mph). However, in the 1998 Le Mans 24 Hours test days, the car hit 330 km/h (205 mph) on the Mulsanne Straight on a lower downforce setup.Specifications:
Price : 1।5 million DM
engine: All Aluminum, Water Cooled, Twin KKK Turbo Flat-6
position: Mid Longitudinal
aspiration: Twin KKk Turbochargers w/Intercooler
valvetrain: DOHC 4 Valves per Cyl
fuel feed Multipoint: Sequential Fuel Injection
displacement: 3164 cc / 193.1 cu in
bore: 95 mm / 3.74 in
stroke: 74.4 mm / 2.93 in
compression: 9.5:1
power: 405.7 kw / 544.0 bhp @ 7000 rpm
hp per litre: 171.93 bhp per litre
bhp/weight: 453.33 bhp per weight
torque: 600 nm / 442.5 ft lbs @ 4250 rpm
drive wheels: RWD w/LSD
body : frame Carbon Fibre Body over 993 Carrera Front Chassis With Rear Tube Frame
front brakes: Internally Vented & Cross Drilled Discs w/8-Piston Calipers, ABS
front brake size: 380 mm / 15.0 in
rear brakes: Internally Vented & Cross Drilled Discs w/4-Piston Calipers, ABS
rear brake size: 380 mm / 15.0 in
front wheels: F 45.7 x 27.9 cm / 18 x 11 in
rear wheels: R 45.7 x 33.0 cm / 18 x 13 in
front tire size: 295/35 ZR 18 Pirelli P Zero
rear tire size: 335/30 ZR 18 Pirelli P Zero
steering: Power Assist
front suspension: Double Wishbones w/Adjustable Shock Absorbers, Anti-Roll Bar
rear suspension: Double Wishbones w/Pushrod Acuated Inboard Spring and Damper Units, Anti-Roll Bar
weight: 1200 kg / 2646 lbs
length: 4710 mm / 185.4 in
width: 1950 mm / 76.8 in
height: 1170 mm / 46.1 in
transmission: Longitudnal 6-Speed Manual
gear ratios: 3.82:1, 2.15:1, 1.56:1, 1.21:1, 0.97:1, 0.75:1
final drive: 3.444:1
top speed: n.a.
0 - 60 mph: 3.6 seconds
